2012AJ....143..103S

Query : 2012AJ....143..103S

2012AJ....143..103S - Astron. J., 143, 103 (2012/April-0)

A multi-survey approach to white dwarf discovery.

SAYRES C., SUBASAVAGE J.P., BERGERON P., DUFOUR P., DAVENPORT J.R.A., ALSAYYAD Y. and TOFFLEMIRE B.M.

Abstract (from CDS):

By selecting astrometric and photometric data from the Sloan Digital Sky Survey (SDSS), the Lépine & Shara Proper Motion North Catalog (LSPM-North), the Two Micron All Sky Survey (2MASS), and the USNO-B1.0 catalog, we use a succession of methods to isolate white dwarf (WD) candidates for follow-up spectroscopy. Our methods include reduced proper motion diagram cuts, color cuts, and atmospheric model adherence. We present spectroscopy of 26 WDs obtained from the CTIO 4 m and APO 3.5 m telescopes. Additionally, we confirm 28 WDs with spectra available in the SDSS DR7 database but unpublished elsewhere, presenting a total of 54 WDs. We label one of these as a recovered WD while the remaining 53 are new discoveries. We determine physical parameters and estimate distances based on atmospheric model analyses. Three new WDs are modeled to lie within 25 pc. Two additional WDs are confirmed to be metal-polluted (DAZ). Follow-up time series photometry confirms another object to be a pulsating ZZ Ceti WD.

Abstract Copyright: ∼

Journal keyword(s): catalogs - proper motions - stars: variables: general - surveys - white dwarfs

VizieR on-line data: <Available at CDS (J/AJ/143/103): table1.dat table2.dat>

Simbad objects: 79

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Number of rows : 79
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 LP 652-342 WD* 03 14 55.9525387800 -08 15 18.529549848   15.5       DQ 16 0
2 GALEX J035343.7-000434 WD* 03 53 43.6724346528 -00 04 33.812497416 14.280 15.391 15.606 15.725 15.906 DA1.5 43 0
3 WD 0352-008 WD* 03 54 56.1610065720 -00 44 10.694038164           DA7 11 0
4 GD 59 WD* 04 14 58.2246647400 +06 40 08.967956880   15.0   16.9   DA4 30 0
5 EGGR 428 WD* 07 59 59.5807976955 +43 35 21.102152499   16.39   16.0   DAH 51 0
6 GALEX J080823.6+171253 HS* 08 08 23.6227904376 +17 12 54.298835352           sdB 2 0
7 LP 367-45 WD* 08 14 48.4874923848 +24 55 41.683730016   17.2   16.7   DQ 23 0
8 WD 0840+243 WD* 08 42 57.6071696568 +24 09 30.839069160           DA7.5 15 0
9 SDSS J085039.35+274536.5 HS* 08 50 39.3633052296 +27 45 36.699152328           sdB 1 0
10 GALEX J085458.6+275226 WD* 08 54 58.6495911936 +27 52 25.857259860           DA6 20 0
11 LB 9169 WD* 09 03 18.5471611632 +20 12 46.778317992   16.2   16.8   DA6 29 0
12 GALEX J091018.8+292148 HS* 09 10 18.7993893624 +29 21 48.097411704           sdB 3 0
13 SDSS J091033.79+020211.3 HS* 09 10 33.7919235144 +02 02 11.417153856           sdB 1 0
14 LP 369-11 WD* 09 10 37.2174585072 +21 56 15.961096608   17.7   17.1   DA7.5 16 0
15 LP 427-14 WD* 09 12 45.0523225128 +19 51 55.937146932   18.0   17.1   DA9 15 0
16 G 46-37 WD* 09 22 56.0652538752 +01 03 10.148001660   17.28 16.59 16.02   DAZ 23 0
17 LP 313-56 WD* 09 24 30.8517906067 +31 20 33.514747654   18.1   17.4   DC 19 0
18 SDSS J092744.74+232402.8 HS* 09 27 44.7565605672 +23 24 03.333927780           sdB 2 0
19 LP 91-84 HS* 09 43 38.1799882296 +61 53 22.672306608   15.2   14.6   sdB 5 0
20 LP 428-54 WD* 09 51 20.1018822336 +19 00 11.855934504   17.6   17.2   DC 14 0
21 GALEX J100839.8+064125 HS* 10 08 39.6482085768 +06 41 24.264968424           sdB 2 0
22 GALEX J101011.0+175534 HS* 10 10 11.0188579440 +17 55 34.378952664           sdB 3 0
23 LSPM J1014+4226 WD* 10 14 35.9726056224 +42 26 22.494588936   16.8   16.2   DA 27 0
24 GALEX J102219.2+052341 HS* 10 22 19.3101018384 +05 23 41.691272784           sdB 2 0
25 LSPM J1026+1439 WD* 10 26 28.1841661560 +14 39 24.131423880   17.5   16.6   DA5.5 17 0
26 LP 430-25 WD* 10 27 47.7777884937 +19 28 24.439594407   17.8   17.02   DA6 24 0
27 LP 372-37 WD* 10 34 43.4282128656 +22 45 48.884549040   16.6   16.1   DZ 20 0
28 GALEX J105007.9-002838 HS* 10 50 07.8874048152 -00 28 38.078017068           sdB 1 0
29 SDSS J105100.24+034120.4 HS* 10 51 00.2490244872 +03 41 20.463455076           sdB 3 0
30 LP 373-33 WD* 10 56 30.0827985672 +23 36 18.405955944   19.0   17.6   DA9 15 0
31 LP 431-62 WD* 11 07 09.7198643160 +14 46 54.404208408   17.4   16.6   DA6.5 20 0
32 LP 318-42 WD* 11 13 16.5496852321 +28 59 07.459335777   18.8   17.4   DC 13 0
33 Ton 578 WD* 11 18 58.0315502952 +28 36 57.585882564   16.81   16.4   DA5.5 25 0
34 GALEX J111930.8-103812 WD* 11 19 30.8724189720 -10 38 13.723066104           DA6 11 0
35 LP 318-145 WD* 11 22 15.9489217464 +28 39 42.587711784   18.3   17.2   DA8 13 0
36 GALEX J113404.2+051234 HS* 11 34 04.2451381584 +05 12 34.577701488   15.647 15.033 15.040   sdB 3 0
37 GALEX J113458.3+025403 HS* 11 34 58.2759365784 +02 54 00.841221792           sdB 2 0
38 LP 375-3 WD* 11 37 28.4509785210 +20 41 09.901860226   17.1   17.0   DA5.5 22 0
39 WD 1143+055 WD* 11 46 04.3664267328 +05 14 01.542233364           DA6.5 21 0
40 US 2955 WD* 11 47 35.4301959912 +30 09 20.721125232   18.0   17.4   DC 19 1
41 SDSS J115433.70+094048.7 HS* 11 54 33.7160611104 +09 40 48.762202872           sdB 2 0
42 PM J11545+2422 WD* 11 54 34.5700459584 +24 22 39.723589884     15.26     DA5.5 28 1
43 LP 494-12 WD* 11 59 33.1332400080 +13 00 31.532459544   18.4   17.5   DQp 28 0
44 SDSS J120405.26+042145.3 HS* 12 04 05.2673192160 +04 21 45.333652932           sdB 2 0
45 LP 554-50 WD* 12 11 18.8211985008 +07 24 48.163144680   17.2   16.1   DA8.5 20 0
46 SDSS J122216.21+222739.0 HS* 12 22 16.2128117568 +22 27 39.179526012           sdB 2 0
47 LP 321-4 WD* 12 27 24.2767994040 +31 50 24.038005848   16.5   16.3   DA6.5 31 0
48 LSPM J1231+1452 WD* 12 31 50.2348530216 +14 52 05.906445096           DA7.5 11 0
49 GALEX J124140.0-073305 WD* 12 41 40.1028589752 -07 33 05.829716736           DA5 20 0
50 LP 616-6 HS* 12 44 25.9466795040 -01 44 25.155429288     16.84 16.34   sdB 5 0
51 SDSS J124930.70+030600.1 HS* 12 49 30.7038037872 +03 06 00.182899728           sdB 2 0
52 GALEX J130014.8+181734 WD* 13 00 14.8160308920 +18 17 34.407586284           DA5.5 25 0
53 LP 322-793 WD* 13 01 43.9188279600 +26 00 42.948665172   18.5   17.8   DA6 14 0
54 GALEX J131014.6+115508 HS* 13 10 14.6195862792 +11 55 08.684597640           sdB 1 0
55 PM J13103+1404 WD* 13 10 23.7821800248 +14 04 20.439828660     16.08     DA5.5 23 0
56 PG 1311+129 WD* 13 13 51.2698819320 +12 40 09.563476332   16.21 16.26     DBA 33 0
57 LP 497-82 WD* 13 24 36.8680277064 +08 57 54.696873276   17.4   16.3   DA5.5 26 0
58 LSPM J1341+0500 WD* 13 41 21.7979739274 +05 00 45.845359937   17.5   16.0   DC 24 0
59 WD 1401+069 WD* 14 03 46.0952747376 +06 44 43.328785416           DC 15 0
60 PG 1402+066 WD* 14 04 32.1324823008 +06 19 16.219086564   15.47 15.61 15.86   DA2 14 1
61 GALEX J140625.5+160827 WD* 14 06 25.6051089360 +16 08 28.094193456           DA6.5 21 0
62 LP 559-47 WD* 14 10 39.9774143472 +02 45 13.102075764   16.9   16.2   DAZ 22 0
63 GALEX J141143.2+220645 WD* 14 11 43.2842243160 +22 06 45.059488884           DC 16 0
64 LSPM J1412+0438 HS* 14 12 28.9948546728 +04 38 39.540053796   16.5   15.1   sdB 3 0
65 PG 1419+062 WD* 14 22 18.8240020704 +06 00 38.776942656   16.55 16.22 16.38   sd 11 0
66 LP 560-24 ** 14 27 48.1284871176 +05 32 32.585842860   17.6   16.7   DA+DC 21 0
67 GD 168 WD* 14 36 45.2129308680 +15 41 40.705148148   16.58 16.58     DA3 17 0
68 GALEX J145940.7+244553 WD* 14 59 40.7969983344 +24 45 54.601461864           DBA 19 0
69 GALEX J151912.0+123946 WD* 15 19 11.9570176176 +12 39 47.014277076           DA5.5 18 0
70 LSPM J1521+1358 WD* 15 21 20.9714258928 +13 58 55.622823744   17.5   16.5   DC 13 0
71 GALEX J153417.4+021847 WD* 15 34 17.5028368656 +02 18 48.121120368     16.43     DA5.5 28 0
72 LSPM J1549+4802 WD* 15 49 27.1820313288 +48 02 29.075388576   17.0   16.9   DC 18 0
73 G 202-26 WD* 16 01 12.7069719058 +53 16 59.842540633   16.6   16.6   DA7.5 33 0
74 LSPM J1620+2044 WD* 16 20 27.6997448904 +20 44 55.089834036   16.9   16.7   DA5.5 16 0
75 G 138-38 WD* 16 32 33.1685717970 +08 51 22.672703259   15.26   14.6   DA8 26 0
76 GALEX J205342.9-045941 WD* 20 53 42.9427626336 -04 59 39.718348044           DZ 13 0
77 GALEX J210452.7+233321 WD* 21 04 52.7318334048 +23 33 21.413669040           DA4.5 15 0
78 LP 577-36 WD* 21 22 12.3465905620 +04 13 56.767229002   17.5   16.2   DA9 21 0
79 LSPM J2146+1550 WD* 21 46 32.3681922890 +15 50 39.076090474   16.3   16.0   DA5.5 10 0

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